Atmosphere/stratosphere/loader/source/ldr_nso.hpp

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/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <switch.h>
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#include <cstdio>
#define MAGIC_NSO0 0x304F534E
#define NSO_NUM_MAX 13
class NsoUtils {
public:
struct NsoSegment {
u32 file_offset;
u32 dst_offset;
u32 decomp_size;
u32 align_or_total_size;
};
struct NsoHeader {
u32 magic;
u32 _0x4;
u32 _0x8;
u32 flags;
NsoSegment segments[3];
u8 build_id[0x20];
u32 compressed_sizes[3];
u8 _0x6C[0x24];
u64 dynstr_extents;
u64 dynsym_extents;
u8 section_hashes[3][0x20];
};
struct NsoLoadExtents {
u64 base_address;
u64 total_size;
u64 args_address;
u64 args_size;
u64 nso_addresses[NSO_NUM_MAX];
u64 nso_sizes[NSO_NUM_MAX];
};
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struct NsoArgument {
u32 allocated_space;
u32 args_size;
u8 _0x8[0x18];
u8 arguments[];
};
static_assert(sizeof(NsoHeader) == 0x100, "Incorrectly defined NsoHeader!");
static const char *GetNsoFileName(unsigned int index) {
switch (index) {
case 0:
return "rtld";
case 1:
return "main";
case 2:
return "subsdk0";
case 3:
return "subsdk1";
case 4:
return "subsdk2";
case 5:
return "subsdk3";
case 6:
return "subsdk4";
case 7:
return "subsdk5";
case 8:
return "subsdk6";
case 9:
return "subsdk7";
case 10:
return "subsdk8";
case 11:
return "subsdk9";
case 12:
return "sdk";
default:
/* TODO: Panic. */
return "?";
}
}
static FILE *OpenNsoFromHBL(unsigned int index);
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static FILE *OpenNsoFromExeFS(unsigned int index);
static FILE *OpenNsoFromSdCard(unsigned int index, u64 title_id);
static bool CheckNsoStubbed(unsigned int index, u64 title_id);
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static FILE *OpenNso(unsigned int index, u64 title_id);
static bool IsNsoPresent(unsigned int index);
static unsigned char *GetNsoBuildId(unsigned int index);
static Result LoadNsoHeaders(u64 title_id);
static Result ValidateNsoLoadSet();
static Result CalculateNsoLoadExtents(u32 addspace_type, u32 args_size, NsoLoadExtents *extents);
static Result LoadNsoSegment(u64 title_id, unsigned int index, unsigned int segment, FILE *f_nso, u8 *map_base, u8 *map_end);
static Result LoadNsosIntoProcessMemory(Handle process_h, u64 title_id, NsoLoadExtents *extents, u8 *args, u32 args_size);
};